JetMonitoringConfig.EventHistoSpec Node1 JetMonitoringConfig.Event HistoSpec + bins + hargs + __init__() + histName() + toTool() + defineHisto() Node2 JetMonitoringConfig.ToolSpec + name + klass + __init__() + toTool() + clone() + defineHisto() Node2->Node1 Node3 JetMonitoringConfig.ConfigDict + __init__() + __getattr__() + __setattr__() + __setitem__() + clone() + dump() - _dump() Node3->Node2 Node4 dict Node4->Node3